{"title":"摩洛哥大西洋沿岸中部地区Engraulis encrasicolus (Linnaeus, 1758)的成熟、繁殖期和产卵期的大小","authors":"Mouna El Qendouci, K. Amenzoui, A. Yahyaoui","doi":"10.22034/IAR.2020.1896027.1027","DOIUrl":null,"url":null,"abstract":"This study was conducted in order to investigate reproductive parameters of anchovy Engraulis encrasicolus (Linnaeus, 1758) in the central area of the Moroccan Atlantic coast, from January to December 2016. The data analysis based on a total of 1633 collected fish suggest that 850 and 783 were females and males respectively with an average male sex-ratio of 46.51% (χ2= 2.74; P > 0.05). The Gonado-somatic index (GSI) indicated that spawning activity occurred from April to November exhibiting the highest value between June and August. The size at first sexual maturity was approximately the same for both sexes and corresponds to 10.5 cm. The fecundity estimated varied from 7323 to 21230 and was positively correlated to the fish length and weight. This study was necessary to fill the knowledge gap and provide information for the management and conservation of the investigated species in this area.","PeriodicalId":13619,"journal":{"name":"International Aquatic Research","volume":" ","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Size at maturity, fecundity and spawning period of anchovy Engraulis encrasicolus (Linnaeus, 1758) in the central area of the Moroccan Atlantic coast\",\"authors\":\"Mouna El Qendouci, K. Amenzoui, A. Yahyaoui\",\"doi\":\"10.22034/IAR.2020.1896027.1027\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study was conducted in order to investigate reproductive parameters of anchovy Engraulis encrasicolus (Linnaeus, 1758) in the central area of the Moroccan Atlantic coast, from January to December 2016. The data analysis based on a total of 1633 collected fish suggest that 850 and 783 were females and males respectively with an average male sex-ratio of 46.51% (χ2= 2.74; P > 0.05). The Gonado-somatic index (GSI) indicated that spawning activity occurred from April to November exhibiting the highest value between June and August. The size at first sexual maturity was approximately the same for both sexes and corresponds to 10.5 cm. The fecundity estimated varied from 7323 to 21230 and was positively correlated to the fish length and weight. This study was necessary to fill the knowledge gap and provide information for the management and conservation of the investigated species in this area.\",\"PeriodicalId\":13619,\"journal\":{\"name\":\"International Aquatic Research\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2020-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Aquatic Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.22034/IAR.2020.1896027.1027\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MARINE & FRESHWATER BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Aquatic Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22034/IAR.2020.1896027.1027","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
Size at maturity, fecundity and spawning period of anchovy Engraulis encrasicolus (Linnaeus, 1758) in the central area of the Moroccan Atlantic coast
This study was conducted in order to investigate reproductive parameters of anchovy Engraulis encrasicolus (Linnaeus, 1758) in the central area of the Moroccan Atlantic coast, from January to December 2016. The data analysis based on a total of 1633 collected fish suggest that 850 and 783 were females and males respectively with an average male sex-ratio of 46.51% (χ2= 2.74; P > 0.05). The Gonado-somatic index (GSI) indicated that spawning activity occurred from April to November exhibiting the highest value between June and August. The size at first sexual maturity was approximately the same for both sexes and corresponds to 10.5 cm. The fecundity estimated varied from 7323 to 21230 and was positively correlated to the fish length and weight. This study was necessary to fill the knowledge gap and provide information for the management and conservation of the investigated species in this area.
期刊介绍：
The journal (IAR) is an international journal that publishes original research articles, short communications, and review articles in a broad range of areas relevant to all aspects of aquatic sciences (freshwater and marine). The Journal specifically strives to increase the knowledge of most aspects of applied researches in both cultivated and wild aquatic animals in the world. The journal is fully sponsored, which means it is free of charge for authors. The journal operates a single-blind peer review process. The main research areas in aquatic sciences include: -Aquaculture- Ecology- Food science and technology- Molecular biology- Nutrition- Physiology- Water quality- Climate Change
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